On 10.07.2014 10:54, Hong-Hua.Yin@freescale.com wrote:
Hi,
I tried to run domsuspend command on my PowerPC board but failed. # virsh dompmsuspend sdk --target mem error: Domain sdk could not be suspended error: argument unsupported: QEMU guest agent is not configured
You need to configure the guest agent: http://wiki.libvirt.org/page/Qemu_guest_agent
It seemed that support suspend-to-mem only from capabilities.
# virsh capabilities <capabilities>
<host> <uuid>52498f7c-d584-45d8-8a15-345b14fa0d10</uuid> <cpu> <arch>ppc</arch> <topology sockets='1' cores='2' threads='1'/> <pages unit='KiB' size='4'/> <pages unit='KiB' size='1024'/> <pages unit='KiB' size='4096'/> <pages unit='KiB' size='16384'/> <pages unit='KiB' size='65536'/> <pages unit='KiB' size='262144'/> <pages unit='KiB' size='1048576'/> </cpu> <power_management> <suspend_mem/>
This express the *host* PM capabilities (virsh nodesuspend) not the guest (virsh dompmsuspend). The guest ACPI capabilities can be found under domain XML: <domain type='kvm'> <name>gentoo</name> <uuid>a75aca4b-a02f-2bcb-4a91-c93cd848c34b</uuid> ... <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <pm> <suspend-to-mem enabled='yes'/> <suspend-to-disk enabled='yes'/> </pm> <devices/> </domain> These are purely on mgmt application (or users) decision. Can be enabled or disabled as you wish. Michal